6066 (1960-1966) GMC Truck Club Bitcoin now accepted here! 
Pay Dues
Pay Dues or become a Site Supporter
 



Go Back   6066 (1960-1966) GMC Truck Club > 6066 GMC Truck Club Forum > GMC V6 and V12 Engines
#Sponsored

GMC V6 and V12 Engines Engine repair and rebuilding

Reply
 
Thread Tools
  #1  
Old March 6th, 2023, 10:34 PM
beerman beerman is offline
Member
 
Join Date: Feb 2016
Location: Yardville, NJ
Truck: 1968 GMC K1500 305E SWB
Posts: 47
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 69
beerman is on a distinguished road
Default V6 Exhaust Manifold Bolt French Locks

FYI

Looks like somebody on Ebay is making GMC V6 exhaust manifold bolt french locks

I picked up a set haven't installed them but the do line up with my 305's exhaust bolts.


Not Mine / No Affiliation

https://www.ebay.com/itm/266124593331

Good luck
Reply With Quote
  #2  
Old March 7th, 2023, 05:55 PM
Jim A Jim A is offline
Senior Member
 
Join Date: Jan 2013
Location: Potter Valley, CA
Truck: 1960 3/4, 4 spd, stepside
Posts: 155
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 116
Jim A is on a distinguished road
Default Re: V6 Exhaust Manifold Bolt French Locks

What are "french locks?"
Reply With Quote
  #3  
Old March 7th, 2023, 06:46 PM
beerman beerman is offline
Member
 
Join Date: Feb 2016
Location: Yardville, NJ
Truck: 1968 GMC K1500 305E SWB
Posts: 47
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 69
beerman is on a distinguished road
Default Re: V6 Exhaust Manifold Bolt French Locks

They are pieces of metal which have tabs that fold over to prevent the exhaust bolts from loosening. Mine are long gone, I've seen them on other trucks and like the look.
Attached Images
File Type: jpg s-l1600.jpg (94.2 KB, Multiple views, 1 clicks)
Reply With Quote
  #4  
Old March 8th, 2023, 06:14 PM
Jim A Jim A is offline
Senior Member
 
Join Date: Jan 2013
Location: Potter Valley, CA
Truck: 1960 3/4, 4 spd, stepside
Posts: 155
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 116
Jim A is on a distinguished road
Default Re: V6 Exhaust Manifold Bolt French Locks

Thanks. Didn't know they had a name.
I'll take a look if there are remnants on the side that has never been off.
Reply With Quote
  #5  
Old March 8th, 2023, 07:22 PM
Prowbar Prowbar is offline
Senior Member
 
Join Date: Dec 2020
Location: Friesland, the Netherlands
Truck: 1965 GMC 1500, 478 V6, SM420
Posts: 442
Thanks: 8
Thanked 11 Times in 10 Posts
Rep Power: 200
Prowbar is a jewel in the roughProwbar is a jewel in the roughProwbar is a jewel in the roughProwbar is a jewel in the roughProwbar is a jewel in the roughProwbar is a jewel in the rough
Default Re: V6 Exhaust Manifold Bolt French Locks

Cool, most are buggered up or rusted through. They are good to have, as the manifold bolts are only tightened to 15-20 ft lbs.

Would be an easy part to laser cut from a piece of sheet metal.
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Exhaust Manifold Bolt Locks Archiver Previous Forum Posts 0 January 22nd, 2006 05:26 AM
Re: [6066 GMC] Exhaust Manifold Bolt Locks Archiver Previous Forum Posts 0 January 22nd, 2006 04:52 AM
RE: [6066 GMC] Exhaust manifold bolt locks Archiver Previous Forum Posts 0 August 4th, 2004 06:05 AM
Re: [6066 GMC] Exhaust manifold bolt locks Archiver Previous Forum Posts 0 August 4th, 2004 05:07 AM
Exhaust manifold bolt locks Archiver Previous Forum Posts 0 August 4th, 2004 04:57 AM


All times are GMT +1. The time now is 03:45 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd 921731456399|1730342743|0